What is Mary Boylan's specialty?

Mary Boylan (NPI 1851343131) is a Medicare-billing provider whose primary specialty is Cardiac Surgery in Duluth, MN.

Where does Mary Boylan practice?

Mary Boylan practices in Duluth, MN, based on the location reported in the CMS Medicare provider datasets for NPI 1851343131.

How much does Medicare pay Mary Boylan?

Mary Boylan (NPI 1851343131) received approximately $9K in total Medicare Part B payments, serving 18 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851343131

Mary BoylanMD

Cardiac SurgeryDuluth, MNI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mary Boylan's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
James Mohn Cardiology · Duluth, MN	23	114
Laszlo Tekler Cardiology · Duluth, MN	20	78
Jeffrey Speer Anesthesiology · Duluth, MN	14	23
Margaret Romano Physician Assistant · Duluth, MN	13	35
Disha Mookherjee Cardiology · Duluth, MN	12	45

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events